US Patent 7530172 Labor-saving long-arm gardening shears

A pair of long-arm gardening shears include a hollow mounting seat, an extension tube, a cutting tool, a link, a toothed rack, two spaced driven gears, and two elongated handles. Each of the elongated handles is provided with a toothed drive portion meshing with a respective driven gear to rotate the respective driven gear. Thus, the cutting tool is driven by a leverage action of the handles and by a gearing action of the toothed drive portions of the handles, the driven gears and the toothed rack, so that the long-arm gardening shears can perform a cutting action in a labor-saving manner, thereby greatly saving the user's energy.